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2014-06-26 16:48:13 +00:00
---
layout: post
title: "Registering an enum type in GLib, glib-mkenums magic"
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date: 2014-08-16 15:10:54
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tags: [development, c, glib]
permalink: /blog/2014/8/16/registering-an-enum-type-in-glib-glib-mkenums-magic
published: true
author:
name: Gergely Polonkai
email: gergely@polonkai.eu
---
In [this
post](/blog/2013/1/6/registering-an-enum-type-in-glib-s-type-system) I said
I will get through the GLib Makefiles to add an enum type to GLib in a more
sophisticated way.
In my other project,
[SWE-GLib](https://github.com/gergelypolonkai/swe-glib) I already used this
method. The following two rules in `Makefile.am` create `gswe-enumtypes.h`
and `gswe-enumtypes.c`.
{% gist gergelypolonkai/1e2fdedb136de3ca67f0 Makefile %}
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`$(GLIB_MKENUMS)` is set in `configure` with
`AC_PATH_PROG([GLIB_MKENUMS], [glib-mkenums])`.
This approach requires the GNU Autotools (you can get rid of it by changing
`$(GLIB_MKENUMS)` to the path to `glib-mkenums` binary), and two template
files, one for the header and one for the code. `$(gswe_enum_headers)`
contains a list of all the header files that have enum types defined
throughout the project.
{% gist gergelypolonkai/1e2fdedb136de3ca67f0 gswe-enumtypes.h %}
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{% gist gergelypolonkai/1e2fdedb136de3ca67f0 gswe-enumtypes.c %}